Fiber Reinforced Plastics/Composites ›› 2016, Vol. 0 ›› Issue (9): 49-54.

• BASIC STUDY • Previous Articles     Next Articles

THE INFLUENCE OF NANO-SiO2 AND PP-g-MAH ON THE PROPERTIES OF GLASS FIBER REINFORCED PP COMPOSITES

YANG Jian-jun1, HE Ya-dong1,2, ZHANG Zhi-cheng1, XIN Chun-ling1*   

  1. 1.College of Mechanical and Electronically Engineering, Beijing University of Chemical Technology, Beijing 100029, China;
    2.Polymer Processing Equipment Engineering Research Center, Ministry of Education, Beijing 100029, China
  • Received:2016-01-05 Online:2016-09-28 Published:2016-09-28

Abstract: The interfacial bonding strength between fiber and resin is the key factor that determines the performance of composite materials. In this paper, we will study the influence of glass fiber surface coated with nano-SiO2 that was treated by silane coupling agent KH550 and PP-g-MAH addition in PP on the interfacial bonding strength and mechanical properties of glass fiber reinforced polypropylene composites. The results show that KH550 surface treatment can reduce the surface energy of nano-SiO2, which makes the nano-SiO2 be advantageous to disperse on fiber surface. Fiber surface coated with nano-SiO2 and addition of PP-g-MAH in PP is helpful to enhance the interfacial bonding strength between the fiber and resin. Meanwhile, shear strength of composite increased by 116.06%, tensile strength increased by 109.14%, and bending strength increased by 99.85%.

Key words: interfacial bonding strength, nano-SiO2, PP-g-MAH, glass fiber reinforced composites

CLC Number: